I'm with Erk on this one. I already know the numbers, and they translate pretty easily in my mind. Plus, having smaller numbers ends up diminishing their impact to me. "15 people will ... whatever," just sounds really small. Tell me how much that is in comparison to the 2 billion people that are out there. 15% of the world is whatever, that's 300 million people. You know?
Most people who are good at raising awareness know which numbers to use and which ones not to use. Like, only 3% of people control over half of the country's wealth is a good comparison. In contrast, 75% live in poverty. Big number, compared to 100. Sure, a lot. But I've already got that idea in my head. However, add to that: That's 1.5 billion people.
Most people already know the percentages, and have seen some of the people. But it's hard to take into account just how many people there are in this world. When you want to make a big impact, don't reduce the numbers, use the biggest ones available for the people you want to draw attention to, and use the small numbers and percentages for those you want to take attention away from, or make a severe point of just how few people there are.
Hmm... didn't really mean to critique it, but I do think that by reducing the numbers, this little tidbit took away somewhat how bad the crisis really is.